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Flight Reliability

F9 3975 · Frontier Airlines

Orlando → Atlanta (MCO–ATL)

49
Bring Snacks
WanderNerd Reliability Score
61%
Arrive within 15 minutes
35 min
Average arrival delay
2.1%
Cancelled
6 min
Median arrival delay

Based on 143 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

F9 3975 departing between 9 AM–12 PM arrived on time 86% of the time, versus 35% between 9 PM–12 AM.

Mondays have been rough.

F9 3975 arrived on time 100% of the time on Wednesdays and just 47% on Mondays. That gap is worth planning around.

Lagging the MCO–ATL route.

F9 3975 arrived on time 61% of the time, versus 75% across the MCO–ATL route.

Lagging the Frontier Airlines network.

F9 3975 arrived on time 61% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon47%(17 flights)
  • Tue56%(16 flights)
  • Wed100%(14 flights)
  • Thu54%(26 flights)
  • Fri54%(24 flights)
  • Sat73%(15 flights)
  • Sun61%(28 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM53%(19 flights)
  • 9 AM–12 PM86%(22 flights)
  • 12–3 PM54%(52 flights)
  • 3–6 PM76%(29 flights)
  • 9 PM–12 AM35%(17 flights)
On-time trend by month
66%
May

Jun 44% → May 66% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202544%16
July 202533%12
February 202646%11
March 202676%29
April 202672%25
May 202666%29
Departures on time
66%
Diverted
0%
Flights flown
140
Months covered
9

Same route, other flights

Keep nerding

Based on 143 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.